• Gastornis

    Category: Dinosaur

    Gastornis (Gas-tor-niss), Gaston's Bird, was a giant bird that lived in the Paleocene and Eocene North America and Europe. The discovery of fossils in North America and Europe indicates that although the continents were separate, a land bridge must have existed via Greenland. It was one of the first large animals to evolve after the extinction of the dinosaurs.

    Gastornis

    Gastornis

    Genera and Species

    Classification: Neornithes, Gastornithiformes, Gastornithidae, Gastornis

    Species: G. parisiensis

    Synonyms: Diatryma

    Characteristics

    Gastornis had a short, powerful neck, functionless forearms and thick legs. The large feet ended in small dull claws. The bird did not have a hook on the end of its beak - a feature found in all raptors which helps them to hold prey and tear into carcasses. The closest relatives would be ducks.

    Size

    LENGTH: 2 m (7 ft).

    WEIGHT: 385 lbs.

    Behavior

    The lack of large carnivorous mammals has made Gastornis (=Diatryma) the plausible candidate for apex predator. This now seems unlikely based on the recent bone analysis of the calcium isotopes. It could have used its beak to harvest foliage, fruits, and seeds from the subtropical forests that it inhabited.

    History of Discovery

    Discovery, H├ębert 1855, but the fossils were fragmentary and Cope found better-preserved fossils that he named Diatryma. Shell fragments and track ways have been attributed to Gastornis.

    Paleoenvironment

    Found in Europe and North America in dense forests with a moist-to-dry subtropical-to-tropical climate.

    References

    1. Knol, R. (2013, November 11). Paleocene. Retrieved May 22, 2014, from http://www.dinosaurcollectorsitea.com/paleocene1.html

    2. Diatryma gigantea. (n.d.). Retrieved May 28, 2014, from http://www.uwyo.edu/geomuseum/exhibits/diatryma-gigantea.html

    3. Vincent M. (2013, April 2). Diatryma.

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